/*
 * Copyright 2019 Google LLC
 *
 * Use of this source code is governed by a BSD-style license that can be
 * found in the LICENSE file.
 */

#ifndef GrTransferFromRenderTask_DEFINED
#define GrTransferFromRenderTask_DEFINED

#include "src/gpu/ganesh/GrRenderTask.h"

class GrTransferFromRenderTask final : public GrRenderTask {
public:
    GrTransferFromRenderTask(sk_sp<GrSurfaceProxy> srcProxy, const SkIRect &srcRect, GrColorType surfaceColorType,
        GrColorType dstColorType, sk_sp<GrGpuBuffer> dstBuffer, size_t dstOffset)
        : GrRenderTask(),
          fSrcProxy(std::move(srcProxy)),
          fSrcRect(srcRect),
          fSurfaceColorType(surfaceColorType),
          fDstColorType(dstColorType),
          fDstBuffer(std::move(dstBuffer)),
          fDstOffset(dstOffset)
    {}

private:
    bool onIsUsed(GrSurfaceProxy *proxy) const override
    {
        SkASSERT(0 == this->numTargets());
        return proxy == fSrcProxy.get();
    }
    void gatherProxyIntervals(GrResourceAllocator *) const override;

    ExpectedOutcome onMakeClosed(GrRecordingContext *, SkIRect *) override
    {
        return ExpectedOutcome::kTargetUnchanged;
    }

    bool onExecute(GrOpFlushState *) override;

#if defined(GR_TEST_UTILS)
    const char *name() const final
    {
        return "TransferFrom";
    }
#endif
#ifdef SK_DEBUG
    void visitProxies_debugOnly(const GrVisitProxyFunc &func) const override
    {
        func(fSrcProxy.get(), skgpu::Mipmapped::kNo);
    }
#endif

    sk_sp<GrSurfaceProxy> fSrcProxy;
    SkIRect fSrcRect;
    GrColorType fSurfaceColorType;
    GrColorType fDstColorType;
    sk_sp<GrGpuBuffer> fDstBuffer;
    size_t fDstOffset;
};

#endif
